Electric light fixture



Jan. 23, 1940. L. J. WILLIAMS ELECTRIC LIGHT FIXTURE Filed Au 3; 1937 m w. mwawm Patented Jan. 23, 1940 UNITED STATES PATENT OFFICE ELECTRIC LIGHT FIXTURE Leslie J. Williams, Pontiac, Mich.

Application August 3, 1937, Serial No. 157,192

1 Claim. (Cl. 173-354) The present invention relates to new and an opening 23 the purpose of which will be presuseful improvements in electric light fixtures and ently set forth. has for one of its important objects to provide, The reference num ral 8 d i n a nvenin a manner as hereinafter set forth, a device tional time controlled switch which is mounted l of this character comprising a novel mounting for operation in the box I. The switch 8 is firmly for a time controlled switch. secured in any suitable manner on a vertical Another very important object of the invention bar it the slotted end portions 9 and II of is to provide a fixture of the aforementioned which are secured by screws it to the upp a character embodying novel means for rendering lower portions of the front 19 of the box I. It the timing mechanism of the switch inoperative Will thus be seen that the switch 8 is mounted 10 when desired. 1 substantially in the opening 1 in the front of Other objects the invention are to provide the box 5. The control lever I3 of the switch 8 an electric light fixture of the character deis operable in the elongated opening or slot 23 in scribed which will be comparatively simple in the closure plate H. As shown to advantage in II construction, strong, durable, compact and which Fig. 2 of the drawing, the switch 8 is interposed ll may be manufactured at low cost. in the electric circuit I 8 of the lamp 24 in the All of the foregoing and still further objects socket I1. and advantages of the invention will become The reference numeral [6 design a keeper apparent from a study of the following specificawhich projects from the lower portion of the go tion, taken in connection with the accompanying plate Ii. The keeper I6 has formed therein a drawing wherein like characters of reference substantially key e S p S1011 A D1111 designate corresponding parts throughout the chain is connected to the switch lever I3 several views, and wherein: through the medium of a ring I4, said pull chain Figure l is a top: plan view of an embodiment being operable in the keyhole slot of the g; of the invention. keeper I6. 95

Figure 2 is a view in vertical section through It is thought that the operation of the device the device. will be readily apparent from a consideration of Figure 3 is a front elevational view, a portion the foregoing. When it is desired to energize of the removable closure plate being broken away. the electric lamp 24 for a predetermined length 39 Figure 4 is a detail view in plan of the keeper of time the chain I5 is simply pulled downthrough the medium of which the clock mecha- Wardly in the keyhole slot 25 of the keeper l6 nism of the switch is rendered inoperative. for closing the switch 8 and said chain is then Referring now to the drawing in detail, it will released for permitting said switch to function be seen that the embodiment of the invention to again open the circuit at the expiration of a which has been illustrated comprises a box I of the predetermined time. However, should it be any suitable material, said box having an opendesired to secure the switch 8 in closed position ing 2 in its lower end which accommodates an the chain 95 is pulled downwardly and then electric light socket ll. Rising from the upper engaged in the restricted end portion of the keyend of the box I is a neck 3 on which a substanhole slot 25 of the keeper I6 thereby preventing 4o tially cup-shaped, flanged collar or the like 4 is the switch lever is from returning to raised or 40 secured for mounting the fixture on a ceiling open position. The construction and arrange- (not shown). The flange of the collar 4 has ment is such that the switch 8, after being seformed therein openings 5 and 6 for the recepcured 0 the bar .m y b xp ditiously mounttion of suitable elements for attaching said collar ed in position for operation in the box I after 5 to an outlet box or other device. which the plate H is applied.

The front it? of the box 5 has formed therein It is believed that the many advantages of an an opening 1. Projecting forwardly from the electric light fixture constructed in accordance box front I9 isan integral flange 2t. Removwith the present invention will be readily underably mounted on the flange 20 a closure plate stood and although a preferred embodiment of II for the front of the box The plate I I is the device is as illustrated and described, it is 50 detachably secured in position through the meto be understood that changes in the details of dium oi screws 2! which are engageable in construction may be resorted to which will fall threaded openings 22 which are provided therewithin the scope of the invention as claimed. for in the upper and lower portions of the front Having described the invention what is claimed I9 of the box I. The plate H has formed therein as new is: 35

A light fixture comprising a box having an opening in one of the walls thereof, means for securing said box to a support, a closure plate for the opening removably mounted on the box and having an opening therein, a keeper projecting from said closure plate and having a substantially keyhole shaped slot therein, a switch mounted in the box and including an operating lever operable in the opening in the closure plate, and a pull chain operable in the substantially keyhole-shaped slot and connected to the switch lever for closing the switch and engageable in the restricted end portion of said substantially keyhole shaped slot in the keeper for securing the switch in closed position.

LESLIE J. WILLIAMS. 

